Collisional current drive in two interpenetrating plasma jets

Ryutov, D. D.; Kugland, N. L.; Park, H.-S.; Pollaine, S. M.; Remington, B. A.; Ross, J. S.
October 2011
Physics of Plasmas;Oct2011, Vol. 18 Issue 10, p104504
Academic Journal
The magnetic field generation in two interpenetrating, weakly collisional plasma streams produced by intense lasers is considered. The generation mechanism is very similar to the neutral beam injection current drive in toroidal fusion devices, with the differences related to the absence of the initial magnetic field, short interaction time, and different geometry. Spatial and temporal characteristics of the magnetic field produced in two counterstreaming jets are evaluated; it is shown that the magnetic field of order of 1 T can be generated for modest jet parameters. Conditions under which this mechanism dominates that of the 'Biermann battery' are discussed. Other settings where the mechanism of the collisional current drive can be important for the generation of seed magnetic fields include astrophysics and interiors of hohlraums.


Related Articles

  • Electron Acceleration by an Oscillating Potential Wall in the Presence of Collisions. Tsushima, A.; Ishihara, O. // AIP Conference Proceedings;2003, Vol. 669 Issue 1, p125 

    Electrons were injected along magnetic field from an electron source and trapped between an oscillating potential wall and a fixed electrostatic potential wall. Some electrons in such a trap may be accelerated enough to go over the fixed potential wall in the course of bouncing motion. We...

  • Transport equations in tokamak plasmas. Callen, J. D.; Hegna, C. C.; Cole, A. J. // Physics of Plasmas;May2010, Vol. 17 Issue 5, p056113 

    Tokamak plasma transport equations are usually obtained by flux surface averaging the collisional Braginskii equations. However, tokamak plasmas are not in collisional regimes. Also, ad hoc terms are added for neoclassical effects on the parallel Ohm’s law, fluctuation-induced transport,...

  • Effects of the parallel electron dynamics and finite ion temperature on the plasma blob propagation in the scrape-off layer. Jovanovič, D.; Shukla, P. K.; Pegoraro, F. // Physics of Plasmas;11/1/2008, Vol. 15 Issue 11, p112305 

    A new three-dimensional model for the warm-ion turbulence at the tokamak edge plasma and in the scrape-off layer is proposed, and used to study the dynamics of plasma blobs in the scrape-off layer. The model is based on the nonlinear interchange mode, coupled with the nonlinear resistive drift...

  • Collisionless interaction of an energetic laser produced plasma with a large magnetoplasma. Constantin, C.; Gekelman, W.; Pribyl, P.; Everson, E.; Schaeffer, D.; Kugland, N.; Presura, R.; Neff, S.; Plechaty, C.; Vincena, S.; Collette, A.; Tripathi, S.; Muniz, M.; Niemann, C. // Astrophysics & Space Science;Aug2009, Vol. 322 Issue 1-4, p155 

    We have commissioned a high-energy glass-laser at the Large Plasma Device (LAPD) to study the interaction of a dense laser-produced plasma with a large (17 m) magnetized plasma. First experiments with an energy of the laser blow-off an order of magnitude higher than previous work (Gekelman et...

  • Hybrid Simulation of Collisionless Shock Formation in Support of Laboratory Experiments at Unr. Sotnikov, V. I.; Ruhl, H.; Presura, R.; Cowan, T.; Leboeuf, J. N.; Hellinger, P.; Travnicek, P. // Astrophysics & Space Science;Jul2005, Vol. 298 Issue 1/2, p369 

    The problem of producing collisionless shocks in the laboratory is of great interest for space and astrophysical plasmas. One approach is based on the idea of combining strong magnetic field (up to 100 Tesla) created during a Z-pinch discharge with a plasma flow produced in the process of the...

  • A comparison of kinetic and multifluid simulations of laser-produced colliding plasmas. Rambo, P.W.; Procassini, R.J. // Physics of Plasmas;Aug95, Vol. 2 Issue 8, p3130 

    Investigates the amount of interpenetration and stagnation in counterstreaming laser-produced plasmas via a kinetic model and a multifluid model in one-dimensional planar geometry. Approaches applied to various colliding plasma systems; Direct comparisons between the kinetic formulation and the...

  • Mechanisms of Spontaneous Reconnection: From Magnetospheric to Fusion Plasma. Zelenyi, Lev; Artemyev, Anton // Space Science Reviews;Oct2013, Vol. 178 Issue 2-4, p441 

    Very often space plasma is treated as collisionless. We check the validity of this paradigm considering various regimes of tearing mode (spontaneous reconnection) including effects of particle collisions and shear of magnetic field. We briefly describe Pitaevskii's effect of effective...

  • Modeling of non-stationary local response on impurity penetration in plasma. Tokar, M. Z.; Koltunov, M. // Physics of Plasmas;Apr2012, Vol. 19 Issue 4, p042502 

    In fusion devices, strongly localized intensive sources of impurities may arise unexpectedly, e.g., if the wall is excessively demolished by hot plasma particles, or can be created deliberately through impurity seeding. The spreading of impurities from such sources both along and perpendicular...

  • Fusion neutron generation computations in a stellarator-mirror hybrid with neutral beam injection. Moiseenko, V. E.; Ågren, O. // AIP Conference Proceedings;6/19/2012, Vol. 1442 Issue 1, p259 

    In the paper [Moiseenko V.E., Noack K., Ã…gren O. 'Stellarator-mirror based fusion driven fission reactor' J Fusion Energy 29 (2010) 65.], a version of a fusion driven system (FDS), i.e. a sub-critical fast fission assembly with a fusion plasma neutron source, is proposed. The plasma part of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics